Silence a release build warning.

st_glsl_to_tgsi.cpp: In function 'pipe_error st_translate_program(gl_context*, 
uint, ureg_program*, glsl_to_tgsi_visitor*, const gl_program*, GLuint, const 
GLuint*, const GLuint*, const ubyte*, const ubyte*, const GLuint*, const 
GLuint*, GLuint, const GLuint*, const GLuint*, const ubyte*, const ubyte*, 
boolean, boolean)':
st_glsl_to_tgsi.cpp:5461:36: warning: unused variable 'pscreen' 
[-Wunused-variable]
                struct pipe_screen *pscreen = st->pipe->screen;
                                    ^

Signed-off-by: Vinson Lee <v...@freedesktop.org>
---
 src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp 
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 25e30c7..c9d40c5 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5461,6 +5461,7 @@ st_translate_program(
                struct pipe_screen *pscreen = st->pipe->screen;
                assert(procType == TGSI_PROCESSOR_VERTEX);
                assert(pscreen->get_shader_param(pscreen, PIPE_SHADER_VERTEX, 
PIPE_SHADER_CAP_INTEGERS));
+               (void) pscreen;
                if (!ctx->Const.NativeIntegers) {
                   struct ureg_dst temp = ureg_DECL_local_temporary(t->ureg);
                   ureg_U2F( t->ureg, ureg_writemask(temp, TGSI_WRITEMASK_X), 
t->systemValues[i]);
-- 
2.1.4

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